<!--
 * Tencent is pleased to support the open source community by making BK-JOB蓝鲸智云作业平台 available.
 *
 * Copyright (C) 2021 Tencent.  All rights reserved.
 *
 * BK-JOB蓝鲸智云作业平台 is licensed under the MIT License.
 *
 * License for BK-JOB蓝鲸智云作业平台:
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of
 * the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
-->

<template>
  <div class="job-smart-input">
    <div
      ref="input"
      class="job-smart-input-area"
      contenteditable="true"
      spellcheck="false"
      :style="stylees"
      @blur="handleBlur"
      @focus="handleFocus"
      @input="handleInput"
      @paste="handlePaste" />
    <div
      v-if="showPlaceholder"
      class="job-smart-input-placeholder"
      @click="handleInputFocus">
      {{ placeholder }}
    </div>
  </div>
</template>
<script>
  export default {
    name: '',
    props: {
      value: {
        type: String,
        default: '',
      },
      placeholder: String,
      resize: {
        type: Boolean,
        default: false,
      },
    },
    data() {
      return {
        localValue: this.value,
        focused: false,
      };
    },
    computed: {
      stylees() {
        const styles = {};
        if (this.focused) {
          styles['z-index'] = 1999;
        } else {
          styles.height = '30px';
          styles.overflow = 'hidden';
          styles['white-space'] = 'pre';
          styles['text-overflow'] = 'ellipsis';
        }
        return styles;
      },
      showPlaceholder() {
        if (this.focused) {
          return false;
        }
        return !this.localValue;
      },
    },
    mounted() {
      this.init();
    },
    methods: {
      init() {
        this.$refs.input.innerText = this.value;
      },
      focus() {
        this.$refs.input.focus();
      },
      handleInputFocus() {
        this.focus();
        setTimeout(() => {
          this.$refs.input.selectionStart = this.localValue.length;
          this.$refs.input.selectionEnd = this.localValue.length;
        });
      },
      handleInput(event) {
        const value = event.target.outerText;
        this.localValue = value.trim();
        this.$emit('input', this.localValue);
        this.$emit('change', this.localValue);
      },
      handleFocus() {
        this.focused = true;
      },
      handleBlur() {
        this.focused = false;
        this.$refs.input.scrollTop = 0;
        this.$emit('blur', this.localValue);
      },
      handlePaste(e) {
        e.preventDefault();
        e.stopPropagation();
        let text = '';
        const event = (e.originalEvent || e);
        if (event.clipboardData && event.clipboardData.getData) {
          text = event.clipboardData.getData('text/plain');
        } else if (window.clipboardData && window.clipboardData.getData) {
          text = window.clipboardData.getData('Text');
        }
        if (document.queryCommandSupported('insertText')) {
          document.execCommand('insertText', false, text);
        } else {
          document.execCommand('paste', false, text);
        }
      },
    },
  };
</script>
<style lang='postcss'>
  @import url("@/css/mixins/scroll");

  .job-smart-input {
    position: relative;
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
    line-height: 18px;
    word-break: break-all;
    cursor: pointer;
    background: #fff;

    .job-smart-input-area {
      @mixin scroller;

      position: absolute;
      top: 0;
      right: 0;
      left: 0;
      max-height: 300px;
      min-height: 32px;
      padding: 6px 10px;
      overflow-y: scroll;
      font-size: 12px;
      color: #63656e;
      background: inherit;
      border: 1px solid #c4c6cc;
      border-radius: 2px;
      outline: none;

      &:focus {
        background: #fff !important;
        border: 1px solid #3a84ff !important;
      }
    }

    .job-smart-input-placeholder {
      position: absolute;
      top: 1px;
      right: 1px;
      bottom: 1px;
      left: 1px;
      height: 30px;
      padding: 6px 10px;
      overflow: hidden;
      color: #c4c6cc;
      text-overflow: ellipsis;
      white-space: nowrap;
      background: transparent;
    }
  }
</style>
